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Ch.1 Lesson 3

Bones, muscles, and nerves

Bone marrow a connective tissue that produces red blood cells and white blood cells
joints a place where bones meet and are attached to each other and to the muscles
tendons tough bands of connective tissue that attach muscles to bones
ligaments one of the bands of connective tissue that hold a skeleton together
cartilage a type of connective tissue that coats the ends of bones where they meet a joint; the tip of your nose and your outer ear is made of this
Voluntary muscles move bones and hold your skeleton upright
Smooth muscles contract slowly and move substances through the organs they surround; run in bands around the walls of blood vessels and digestive organs
Cardiac muscles make up the walls of the heart; function is to pump blood
neuron a specialized cell that can receive information and transmit it to other cells
synapse the gap between neurons
receptors nerve cells that detect conditions in the body’s environment
reflexes automatic muscle responses to situations
nerves clusters of neurons that stretch between the central nervous system and every other part of the body
Created by: hun3hai2